CN221077700U - Sensor calibration device - Google Patents

Abstract

The utility model discloses a sensor calibration device, comprising: the bracket is used for supporting sensing equipment to be calibrated; the movable table is movably arranged on the periphery of the bracket relative to the bracket; the calibration assembly is arranged on the movable table so as to switch the relative position of the sensing equipment to be calibrated along with the movement of the movable table; the calibration assembly is provided with at least two calibration positions on the motion trail, and the at least two calibration positions correspond to different sensors on the sensing equipment to be calibrated; and the driving shaft of the driving device is connected with the movable table to drive the movable table to move. The support can be used for fixedly supporting the sensing equipment to be calibrated, and the calibration assembly is arranged on the movable table to move along with the movable table, so that the calibration assembly can move to different calibration positions along with the movable table to calibrate different sensors on the sensing equipment successively; therefore, the calibration flow of the sensor on the sensing equipment can be simplified, and the convenience of the calibration process is improved.

Description

Sensor calibration device

Technical Field

The utility model relates to the technical field of sensor calibration, in particular to a sensor calibration device.

Background

For sensing equipment with sensors, such as a mask beauty instrument, the sensors need to be calibrated before being put into use, and if there are a plurality of sensors on the sensing equipment, the sensors need to be calibrated respectively. In the related art, in the calibration process, a calibration plate is usually manually operated to calibrate different sensors on the same sensing device, and the operation process is relatively complicated.

Disclosure of utility model

The utility model mainly aims to provide a sensor calibration device, which aims to solve the technical problem of how to improve the convenience of a sensor calibration process of sensing equipment.

In order to achieve the above object, the present utility model provides a sensor calibration device for calibrating a sensor on a sensing apparatus, the sensor calibration device comprising: the support is used for supporting sensing equipment to be calibrated; the movable table is movably arranged on the periphery side of the bracket relative to the bracket; the calibration assembly is arranged on the movable table so as to switch the relative position of the sensing equipment to be calibrated along with the movement of the movable table; the calibration assembly is provided with at least two calibration positions on the motion trail, and the at least two calibration positions correspond to different sensors on the sensing equipment to be calibrated; and the driving shaft of the driving device is connected with the movable table so as to drive the movable table to move.

Optionally, the movable table is rotatably installed on the periphery of the support, and the movement track of the movable table is annularly arranged on the support.

Optionally, the sensor calibration device further comprises a control main board, and the control main board is electrically connected with the driving device to control the driving device to start or stop according to the position switching condition of the calibration component.

Optionally, the sensor calibration device further comprises a base and a limiting part, the support, the movable table and the driving device are all installed on the base, the base is provided with a telescopic hole, the telescopic hole is located on the motion track of the movable table, the limiting part is installed in the telescopic hole in a telescopic mode, the bottom of the movable table is provided with at least two limiting grooves, and the limiting part is used for being matched with the limiting grooves in a switching mode so as to limit the movable table at each calibration position.

Optionally, the bracket comprises a positioning cylinder and a supporting piece arranged on the positioning cylinder, and the supporting piece protrudes out of the top end of the positioning cylinder and is used for supporting the sensing equipment to be calibrated; the movable table is arranged on the positioning cylinder in a surrounding manner, the movable table comprises a surrounding cylinder and a supporting annular plate connected to the top end of the surrounding cylinder, the calibration assembly is arranged on the supporting annular plate, and the driving device is arranged between the surrounding cylinder and the positioning cylinder.

Optionally, a rack is arranged on the inner wall surface of the surrounding barrel, and the rack extends along the circumferential direction of the surrounding barrel; the driving shaft of the driving device is connected with a gear, and the gear is meshed with the rack.

Optionally, the support piece with the scalable cooperation of positioning tube, sensor calibration device still includes inductive switch and trigger piece, inductive switch install in the positioning tube, trigger piece install in the bottom of support piece, inductive switch with the demarcation subassembly electricity is connected, trigger piece is waiting to mark under the pressure of sensing equipment triggers inductive switch, inductive switch control demarcation subassembly is opened.

Optionally, the support further comprises a reset piece connected to the support piece, and the reset piece is used for resetting the support piece to a position far away from the inductive switch when the sensing device to be calibrated leaves the support piece.

Optionally, the sensor calibration device further includes an upper cover, and the upper cover is detachably or movably spliced to the base, so as to cover or open the bracket, the movable table and the calibration component.

Optionally, the calibration assembly includes a calibration plate for calibrating the sensor and a light source for providing light of a preset brightness.

In the technical scheme of the sensor calibration device, the support can be used for fixedly supporting the sensing equipment to be calibrated, the calibration assembly is arranged on the movable table to move along with the movable table, so that the calibration assembly can move to different calibration positions along with the movable table to calibrate different sensors on the sensing equipment successively; therefore, a user does not need to hold the sensing equipment or the calibration assembly to switch the relative positions of the calibration assembly and the sensing equipment, so that the calibration flow of the sensor on the sensing equipment can be simplified, and the convenience of the calibration process is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a sensor calibration apparatus according to the present utility model;

FIG. 2 is an exploded view of an embodiment of a sensor calibration device of the present utility model;

FIG. 3 is an exploded view of one embodiment of a bracket according to the present utility model;

FIG. 4 is a perspective view of an embodiment of a sensor calibration device of the present utility model.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						10	Sensing device to be calibrated	20	Support frame	30	Movable table
40	Calibration assembly	50	Driving device	60	Control main board
						71	Base seat	72	Limiting piece	31	Limiting groove
21	Positioning cylinder	22	Support member	32	Surrounding tube
						33	Supporting ring plate	61	Inductive switch	62	Trigger piece
23	Reset piece	73	Upper cover	41	Calibration plate
						42	Lamp source	321	Rack bar	51	Gear wheel

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

For sensing equipment with sensors, such as a mask beauty instrument, the sensors need to be calibrated before being put into use, and if there are a plurality of sensors on the sensing equipment, the sensors need to be calibrated respectively. In the related art, in the calibration process, a calibration plate is usually manually operated to calibrate different sensors on the same sensing device, and the operation process is relatively complicated.

The utility model provides a sensor calibration device, which aims to solve the technical problem of how to improve the convenience of a sensor calibration process of sensing equipment.

In the embodiment of the utility model, as shown in fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a sensor calibration device of the utility model.

The sensor calibration device is used for calibrating a sensor on sensing equipment, and comprises: a support 20, wherein the support 20 is used for supporting the sensing equipment 10 to be calibrated; a movable table 30, wherein the movable table 30 is movably mounted on the circumferential side of the bracket 20 with respect to the bracket 20; a calibration assembly 40, wherein the calibration assembly 40 is mounted on the movable table 30 to switch the relative position with the sensing device 10 to be calibrated along with the movement of the movable table 30; the calibration assembly 40 has at least two calibration positions on the motion trail, the at least two calibration positions corresponding to different sensors on the sensing device 10 to be calibrated; and a driving device 50, wherein a driving shaft of the driving device 50 is connected with the movable table 30 to drive the movable table 30 to move.

In this embodiment, the sensing device may be an intelligent mask, where the intelligent mask includes a mask body and an acquisition sensor mounted on the mask body, where the acquisition sensor may emit light to face skin of a user, and determine a face skin state of the user by reflected light, for example, may collect moisture, skin, texture, color spots, red swelling, and other conditions of the face skin of the user. The number of the acquisition sensors is two or more to acquire the skin states of different parts of the face of the user.

The support 20 can be used for supporting the sensing equipment, and after the sensing equipment is placed on the support 20, the position of the sensor on the sensing equipment is fixed relative to the support 20. The moving mode of the movable table 30 may be linear movement or rotational movement, and is not limited herein, and it is only required that the movable table 30 can move relative to the support 20. The calibration assembly 40 is used for calibrating the sensor, and the calibration assembly 40 is mounted on the movable stage 30 so as to be movable synchronously with the movable stage 30, so that the position of the calibration assembly 40 relative to the sensing device is also variable. By presetting the motion trail of the movable table 30, the calibration assembly 40 can switch positions to correspond to different sensors in sequence, so that different sensors can be calibrated in sequence, and the calibration of a plurality of sensors on the sensing device by one calibration assembly 40 is realized. Because the sensing device is fixed on the bracket 20, and the calibration assembly 40 moves along the preset track along with the movable table 30, a tester does not need to hold the operation, so that the calibration process of the sensing device can be simplified, and the convenience of the calibration process is improved; in addition, since the position of the sensor is fixed during the calibration process and the calibration assembly 40 moves along the preset track, the calibration error caused by the movement can be reduced, thereby improving the accuracy of the calibration result.

Specifically, as shown in fig. 1, the movable table 30 is rotatably mounted on the peripheral side of the support 20, and the movement track of the movable table 30 is annularly disposed on the support 20. The sensors on the sensing equipment are distributed along the circumferential direction of the support 20, the motion track of the movable table 30 is annularly arranged on the support 20, and the motion track of the calibration assembly 40 can be corresponding to the distribution track of the sensors, so that the calibration assembly 40 can be corresponding to different sensors in a mode of moving along the circumferential track, and the motion range of the movable table 30 and the calibration assembly 40 can be reduced, so that the occupied space of the sensor calibration device is reduced.

The drive means 50 may be a motor or other form of drive device. The drive shaft of the drive device 50 may be directly or indirectly connected to the movable table 30. The driving device 50 can drive the movable table 30 to automatically rotate, so that the working process of the sensor calibration device can be more automated, and the movement error of the movable table 30 each time can be reduced, thereby further improving the accuracy of the calibration result.

The timing of starting and stopping the driving device 50 may be manually controlled or may be automatically controlled by a sensor.

Specifically, as shown in fig. 2, the sensor calibration device further includes a control main board 60, where the control main board 60 is electrically connected to the driving device 50, so as to control the driving device 50 to start or stop according to the position switching condition of the calibration assembly 40.

The position switching condition of the calibration assembly 40 may be determined by detecting the stop position of the calibration assembly 40 by a position sensor, or by detecting the angle or the example of each movement of the calibration assembly 40 by an angle sensor or a displacement sensor, which is not limited herein. When the calibration assembly 40 needs to switch positions, the control main board 60 can control the driving device 50 to be started so as to drive the movable table 30 to drive the calibration assembly 40 to move; after the calibration assembly 40 moves to the preset position, the control main board 60 controls the driving device 50 to stop so that the calibration assembly 40 accurately stays at the preset position, thereby improving the accuracy of the control timing of the driving device 50 and further improving the accuracy of the calibration result.

As shown in fig. 3 and 4, fig. 3 is an exploded view of an embodiment of a stand 20 according to the present utility model; FIG. 4 is a perspective view of an embodiment of a sensor calibration device of the present utility model.

The sensor calibration device further comprises a base 71 and a limiting piece 72, the support 20, the movable table 30 and the driving device 50 are all installed on the base 71, the base 71 is provided with a telescopic hole, the telescopic hole is located on the motion track of the movable table 30, the limiting piece 72 is installed in the telescopic hole in a telescopic mode, at least two limiting grooves 31 are formed in the bottom of the movable table 30, and the limiting piece 72 is used for being matched with the limiting grooves 31 in a switching mode so as to limit the movable table 30 at each calibration position.

The base 71 can realize bearing and supporting of the support 20, the movable table 30, the driving device 50 and other functional components, so that the operation of carrying, mounting and the like of the whole sensor calibration device is convenient. After the calibration assembly 40 is switched to the preset calibration position, the control main board 60 controls the driving device 50 to stop, and at this time, although no driving force acts on the movable table 30, the movable table 30 is easy to move continuously under the action of inertia, so that the calibration assembly 40 deviates from the calibration position. Therefore, by providing the stopper 72 to cooperate with the stopper groove 31 on the movable table 30, the resistance to which the movable table 30 is subjected each time it leaves the calibration position can be increased, so that the calibration assembly 40 can stably stay at the calibration position. The limiting member 72 is kept to extend out of the telescopic hole when receiving a force smaller than a preset force, and is pressed back into the telescopic hole when receiving a force larger than the preset force, wherein the preset force is larger than the force generated by the movable table 30 due to inertial movement and smaller than the driving force of the driving device 50, so that the blocking of the position switching process of the movable table 30 by the limiting member 72 can be avoided.

Specifically, as shown in fig. 2 to 4, the bracket 20 includes a positioning cylinder 21 and a supporting member 22 mounted on the positioning cylinder 21, where the supporting member 22 protrudes from the top end of the positioning cylinder 21 and is used for supporting the sensing device 10 to be calibrated; the movable table 30 is arranged around the positioning cylinder 21, the movable table 30 comprises a surrounding cylinder 32 and a supporting ring plate 33 connected to the top end of the surrounding cylinder 32, the calibration assembly 40 is installed on the supporting ring plate 33, and the driving device 50 is installed between the surrounding cylinder 32 and the positioning cylinder 21.

In practical application, as shown in fig. 4, the inner wall surface of the enclosure 32 is provided with a rack 321, and the rack 321 extends along the circumferential direction of the enclosure 32; the driving shaft of the driving device 50 is connected with a gear 51, and the gear 51 is meshed with the rack 321, so that the rotation of the driving shaft of the driving device 50 can be converted into the rotation of the movable table 30. The sensing device 10 to be calibrated may be placed on top of the support 22 such that the sensor on the sensing device can be opposed to the support ring plate 33 such that the calibration assembly 40 effectively corresponds to the sensor when the calibration assembly 40 is rotated with the movable stage 30 to the calibration position.

The timing of the calibration assembly 40 may be manually controlled, or may be automatically opened after the sensing device is in place, which is not limited herein.

As shown in fig. 2 and 3, the support member 22 is telescopically matched with the positioning cylinder 21, the sensor calibration device further includes a sensing switch 61 and a trigger member 62, the sensing switch 61 is installed in the positioning cylinder 21, the trigger member 62 is installed at the bottom of the support member 22, the sensing switch 61 is electrically connected with the calibration assembly 40, and the sensing switch 61 controls the calibration assembly 40 to be turned on when the sensing switch 61 is triggered by the pressure of the sensing device to be calibrated by the trigger member 62.

The inductive switch 61 may be a hall switch or other types of trigger switches, without limitation. After the sensing equipment is placed on the supporting piece 22, the supporting piece 22 slides downwards under the action of gravity of the sensing equipment, so that the triggering piece 62 triggers the inductive switch 61, and the inductive switch 61 controls the calibration assembly 40 to be started, and therefore automatic control on the starting of the calibration assembly 40 can be achieved, and the convenience of the calibration process of the sensor calibration device is further improved.

After the sensing device leaves the supporting piece 22, the supporting piece 22 needs to drive the skin contact piece to reset to a position far away from the inductive switch 61, and the supporting piece 22 can be reset manually or automatically.

Specifically, as shown in fig. 2 and 3, the stand 20 further includes a reset member 23 connected to the support member 22, where the reset member 23 is configured to reset the support member 22 to a position away from the inductive switch 61 when the sensing device to be calibrated is separated from the support member 22. The return member 23 may be an elastic member, for example, a spring. The reset member 23 can reset the support member 22 to a position away from the sensor switch 61 by elastic force after the sensor device leaves the support member 22, so that the calibration assembly 40 stops running in time.

Illustratively, as shown in fig. 2, the sensor calibration apparatus further includes an upper cover 73, and the upper cover 73 is detachably or movably coupled to the base 71 to cover or uncover the stand 20, the movable table 30, and the calibration assembly 40. The sensor on the sensor device may be a color sensor, and when calibrating the sensor, the sensor needs to isolate the interference of external light, so that the upper cover 73 can cover the base 71 during the working process of the sensor calibration device, so as to improve the accuracy of the calibration result. After the calibration is completed, the upper cover 73 is opened to the base 71, so that the sensing device can be taken out.

Specifically, as shown in fig. 1, the calibration assembly 40 includes a calibration plate 41 and a light source 42, wherein the calibration plate 41 is used for calibrating the sensor, and the light source 42 is used for providing light with preset brightness. The light source 42 can ensure that the ambient brightness of the calibration plate 41 and the sensor in the calibration process meets the calibration requirement, so as to further improve the accuracy of the calibration result.

In the technical scheme of the sensor calibration device, the bracket 20 can be used for fixedly supporting the sensing equipment 10 to be calibrated, the calibration assembly 40 is arranged on the movable table 30 to move along with the movable table 30, so that the calibration assembly 40 can move to different calibration positions along with the movable table 30 to calibrate different sensors on the sensing equipment successively; in this way, the user does not need to hold the sensing device or the calibration assembly 40 to switch the relative positions of the calibration assembly 40 and the sensing device, so that the calibration flow of the sensor on the sensing device can be simplified, and the convenience of the calibration process is improved.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A sensor calibration device for calibrating a sensor on a sensing apparatus, the sensor calibration device comprising:

the support is used for supporting sensing equipment to be calibrated;

The movable table is movably arranged on the periphery side of the bracket relative to the bracket;

The calibration assembly is arranged on the movable table so as to switch the relative position of the sensing equipment to be calibrated along with the movement of the movable table; the calibration assembly is provided with at least two calibration positions on the motion trail, and the at least two calibration positions correspond to different sensors on the sensing equipment to be calibrated;

And the driving shaft of the driving device is connected with the movable table so as to drive the movable table to move.

2. The sensor calibration device according to claim 1, wherein the movable table is rotatably mounted on a peripheral side of the support, and a movement track of the movable table is looped on the support.

3. The sensor calibration device of claim 2, further comprising a control motherboard electrically connected to the drive device to control the drive device to start or stop based on a position switch condition of the calibration assembly.

4. The sensor calibration device of claim 3, further comprising a base and a limiting member, wherein the support, the movable table and the driving device are all mounted on the base, the base is provided with a telescopic hole, the telescopic hole is positioned on a movement track of the movable table, the limiting member is telescopically mounted in the telescopic hole, the bottom of the movable table is provided with at least two limiting grooves, and the limiting member is used for being matched with each limiting groove in a switching manner so as to limit the movable table at each calibration position.

5. The sensor calibration device according to claim 2, wherein the bracket comprises a positioning cylinder and a supporting piece arranged on the positioning cylinder, and the supporting piece protrudes out of the top end of the positioning cylinder and is used for supporting sensing equipment to be calibrated; the movable table is arranged on the positioning cylinder in a surrounding manner, the movable table comprises a surrounding cylinder and a supporting annular plate connected to the top end of the surrounding cylinder, the calibration assembly is arranged on the supporting annular plate, and the driving device is arranged between the surrounding cylinder and the positioning cylinder.

6. The sensor calibration device of claim 5, wherein the inner wall surface of the enclosure is provided with racks extending in the circumferential direction of the enclosure; the driving shaft of the driving device is connected with a gear, and the gear is meshed with the rack.

7. The sensor calibration device of claim 5, wherein the support member is in telescopic fit with the positioning cylinder, the sensor calibration device further comprises a sensing switch and a triggering member, the sensing switch is installed in the positioning cylinder, the triggering member is installed at the bottom of the support member, the sensing switch is electrically connected with the calibration assembly, and the triggering member controls the calibration assembly to be started when the sensing switch is triggered under the pressure of sensing equipment to be calibrated.

8. The sensor calibration apparatus of claim 7, wherein the bracket further comprises a reset member coupled to the support member for resetting the support member to a position remote from the inductive switch when the sensing device to be calibrated is clear of the support member.

9. The sensor calibration device of claim 4, further comprising an upper cover removably or removably attachable to the base to cover or uncover the support, the movable table, and the calibration assembly.

10. The sensor calibration device of claim 9, wherein the calibration assembly comprises a calibration plate for calibrating the sensor and a light source for providing light of a predetermined intensity.